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Finding the Fourth Proportional to 59,907.20, 89,860.80 and 59,518.40

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Solution

The fourth proportional to 59,907.20, 89,860.80 and 59,518.40 is: 89,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,907.20 : 89,860.80 = 59,518.40 : x
  2. Step 2: Convert to fraction form
    59,907.20/89,860.80 = 59,518.40/x
  3. Step 3: Cross multiply
    59,907.20x = 89,860.80 × 59,518.40
  4. Step 4: Simplify right side
    59,907.20x = 5,348,371,038.72
  5. Step 5: Solve for x
    x = 5,348,371,038.72/59,907.20
  6. Step 6: Final answer
    x = 89,277.60

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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.