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Finding the Fourth Proportional to 64,095.76, 96,085.05 and 28,538.38

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Solution

The fourth proportional to 64,095.76, 96,085.05 and 28,538.38 is: 42,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,095.76 : 96,085.05 = 28,538.38 : x
  2. Step 2: Convert to fraction form
    64,095.76/96,085.05 = 28,538.38/x
  3. Step 3: Cross multiply
    64,095.76x = 96,085.05 × 28,538.38
  4. Step 4: Simplify right side
    64,095.76x = 2,742,111,669.22
  5. Step 5: Solve for x
    x = 2,742,111,669.22/64,095.76
  6. Step 6: Final answer
    x = 42,781.48

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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.