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Finding the Third Proportional to 28,959.19 and 45,130.50

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Solution

The third proportional to 28,959.19 and 45,130.50 is: 70,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.19 : 45,130.50 = 45,130.50 : x
  2. Step 2: Convert to fraction form
    28,959.19/45,130.50 = 45,130.50/x
  3. Step 3: Cross multiply
    28,959.19x = 45,130.50 × 45,130.50
  4. Step 4: Simplify right side
    28,959.19x = 2,036,762,030.25
  5. Step 5: Solve for x
    x = 2,036,762,030.25/28,959.19
  6. Step 6: Final answer
    x = 70,332.15

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.