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Finding the Fourth Proportional to 72,693.84, 109,050.30 and 25,303.80

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Solution

The fourth proportional to 72,693.84, 109,050.30 and 25,303.80 is: 37,959.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,693.84 : 109,050.30 = 25,303.80 : x
  2. Step 2: Convert to fraction form
    72,693.84/109,050.30 = 25,303.80/x
  3. Step 3: Cross multiply
    72,693.84x = 109,050.30 × 25,303.80
  4. Step 4: Simplify right side
    72,693.84x = 2,759,386,981.14
  5. Step 5: Solve for x
    x = 2,759,386,981.14/72,693.84
  6. Step 6: Final answer
    x = 37,959.02

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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.