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Finding the Fourth Proportional to 58,709.40, 88,064.10 and 47,045.40

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Solution

The fourth proportional to 58,709.40, 88,064.10 and 47,045.40 is: 70,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,709.40 : 88,064.10 = 47,045.40 : x
  2. Step 2: Convert to fraction form
    58,709.40/88,064.10 = 47,045.40/x
  3. Step 3: Cross multiply
    58,709.40x = 88,064.10 × 47,045.40
  4. Step 4: Simplify right side
    58,709.40x = 4,143,010,810.14
  5. Step 5: Solve for x
    x = 4,143,010,810.14/58,709.40
  6. Step 6: Final answer
    x = 70,568.10

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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.