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Finding the Fourth Proportional to 51,583.48, 77,386.84 and 18,303.50

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Solution

The fourth proportional to 51,583.48, 77,386.84 and 18,303.50 is: 27,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,583.48 : 77,386.84 = 18,303.50 : x
  2. Step 2: Convert to fraction form
    51,583.48/77,386.84 = 18,303.50/x
  3. Step 3: Cross multiply
    51,583.48x = 77,386.84 × 18,303.50
  4. Step 4: Simplify right side
    51,583.48x = 1,416,450,276.61
  5. Step 5: Solve for x
    x = 1,416,450,276.61/51,583.48
  6. Step 6: Final answer
    x = 27,459.38

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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.