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Finding the Fourth Proportional to 58,988.47, 81,404.21 and 32,130.90

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Solution

The fourth proportional to 58,988.47, 81,404.21 and 32,130.90 is: 44,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,988.47 : 81,404.21 = 32,130.90 : x
  2. Step 2: Convert to fraction form
    58,988.47/81,404.21 = 32,130.90/x
  3. Step 3: Cross multiply
    58,988.47x = 81,404.21 × 32,130.90
  4. Step 4: Simplify right side
    58,988.47x = 2,615,590,531.09
  5. Step 5: Solve for x
    x = 2,615,590,531.09/58,988.47
  6. Step 6: Final answer
    x = 44,340.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.