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Finding the Fourth Proportional to 55,802.72, 77,009.04 and 30,652.76

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Solution

The fourth proportional to 55,802.72, 77,009.04 and 30,652.76 is: 42,301.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,802.72 : 77,009.04 = 30,652.76 : x
  2. Step 2: Convert to fraction form
    55,802.72/77,009.04 = 30,652.76/x
  3. Step 3: Cross multiply
    55,802.72x = 77,009.04 × 30,652.76
  4. Step 4: Simplify right side
    55,802.72x = 2,360,539,620.95
  5. Step 5: Solve for x
    x = 2,360,539,620.95/55,802.72
  6. Step 6: Final answer
    x = 42,301.52

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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.