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Finding the Fourth Proportional to 17,607,603.40, 26,411,405.10 and 10,879,808.20

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Solution

The fourth proportional to 17,607,603.40, 26,411,405.10 and 10,879,808.20 is: 16,319,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,607,603.40 : 26,411,405.10 = 10,879,808.20 : x
  2. Step 2: Convert to fraction form
    17,607,603.40/26,411,405.10 = 10,879,808.20/x
  3. Step 3: Cross multiply
    17,607,603.40x = 26,411,405.10 × 10,879,808.20
  4. Step 4: Simplify right side
    17,607,603.40x = 287,351,021,780,501.81
  5. Step 5: Solve for x
    x = 287,351,021,780,501.81/17,607,603.40
  6. Step 6: Final answer
    x = 16,319,712.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.