Home / 47,585.34-65,681.28-28,723.68

Finding the Fourth Proportional to 47,585.34, 65,681.28 and 28,723.68

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Solution

The fourth proportional to 47,585.34, 65,681.28 and 28,723.68 is: 39,646.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,585.34 : 65,681.28 = 28,723.68 : x
  2. Step 2: Convert to fraction form
    47,585.34/65,681.28 = 28,723.68/x
  3. Step 3: Cross multiply
    47,585.34x = 65,681.28 × 28,723.68
  4. Step 4: Simplify right side
    47,585.34x = 1,886,608,068.71
  5. Step 5: Solve for x
    x = 1,886,608,068.71/47,585.34
  6. Step 6: Final answer
    x = 39,646.83

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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.